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Dmitry Roshchin 95aab13929 Accepting request 722576 from home:marxin:branches:science
- Update to version 0.3.7
  common:
    * having the gmake special variables TARGET_ARCH or TARGET_MACH
      defined no longer causes build failures in ctest or utest
    * defining NO_AFFINITY or USE_TLS to zero in gmake builds
      no longer has the same effect as setting them to one
    * a new test program was added to allow checking the library for thread safety
    * a new option USE_LOCKING was added to ensure thread safety
      when OpenBLAS itself is built without multithreading but
    * will be called from multiple threads.
    * a build failure on Linux with glibc versions earlier than 2.5 was fixed
    * a runtime error with CPU enumeration (and NO_AFFINITY not set)
      on glibc 2.6 was fixed
    * NO_AFFINITY was added to the CMAKE options
      (and defaults to being active on Linux, as in the gmake builds)
  x86_64
    * the build-time logic for detection of AVX512 availability
      in the processor and compiler was fixed
    * gmake builds on OSX now set the internal name
      of the library to libopenblas.0.dylib (consistent with CMAKE)
    * the Haswell DGEMM kernel received a significant speedup
      through improved prefetch and load instructions
    * performance of DGEMM, DTRMM, DTRSM and ZDOT on Zen/Zen2
      was markedly increased by avoiding vpermpd instructions
    * the SKYLAKEX (AVX512) DGEMM helper functions have now been
      disabled to fix remaining errors in DGEMM, DSYMM and DTRMM
  POWER:
    * added support for building on FreeBSD/powerpc64 and FreeBSD/ppc970
    * added optimized kernels for POWER9 single and double precision complex BLAS3
    * added optimized kernels for POWER9 SGEMM and STRMM

OBS-URL: https://build.opensuse.org/request/show/722576
OBS-URL: https://build.opensuse.org/package/show/science/openblas?expand=0&rev=81
2019-08-12 14:13:38 +00:00
_constraints Accepting request 684134 from home:StefanBruens:branches:science 2019-03-12 17:39:07 +00:00
_multibuild Accepting request 533655 from home:eeich:hpc_alt 2017-10-16 15:00:39 +00:00
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.gitignore Accepting request 106990 from home:scorot 2012-02-26 12:52:52 +00:00
OpenBLAS-0.3.7.tar.gz Accepting request 722576 from home:marxin:branches:science 2019-08-12 14:13:38 +00:00
openblas-noexecstack.patch Accepting request 699559 from home:marxin:branches:science 2019-05-04 08:29:45 +00:00
openblas-s390.patch Accepting request 699559 from home:marxin:branches:science 2019-05-04 08:29:45 +00:00
openblas.changes Accepting request 722576 from home:marxin:branches:science 2019-08-12 14:13:38 +00:00
openblas.spec Accepting request 722576 from home:marxin:branches:science 2019-08-12 14:13:38 +00:00
README.HPC.SUSE Accepting request 533655 from home:eeich:hpc_alt 2017-10-16 15:00:39 +00:00
README.SUSE - Change library name suffix 2015-08-12 08:12:08 +00:00

openSUSE specific packaging
===========================

OpenBLAS provides optimized implementations of BLAS and LAPACK.
openSUSE provides three variants:
 * Serial library (libopenblas_serial0)
 * With OpenMP support (libopenblas_openmp0)
 * With threading support (libopenblas_pthreads0)

By defult openSUSE uses pthreads version on x86 systems and OpenMP
for other architectures. On x86 systems OpenBLAS uses dynamic
architectures support, so it contains all CPU-related optimizations.

How to switch between the various BLAS/LAPACK implementations
=============================================================

BLAS:
 sudo /usr/sbin/update-alternatives --config libblas.so.3

LAPACK:
 sudo /usr/sbin/update-alternatives --config liblapack.so.3

More information is available at:

 https://en.opensuse.org/openSUSE:Science_Linear_algebra_libraries